<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>第39个CSS页面</title>

    <style>
        p {
            border-style: solid;
        }

        p.none {
            border-top-style: none;
        }

        p.dotted {
            border-top-style: dotted;
        }

        p.dashed {
            border-top-style: dashed;
        }

        p.solid {
            border-top-style: solid;
        }

        p.double {
            border-top-style: double;
        }

        p.groove {
            border-top-style: groove;
        }

        p.ridge {
            border-top-style: ridge;
        }

        p.inset {
            border-top-style: inset;
        }

        p.outset {
            border-top-style: outset;
        }
    </style>
</head>
<body>

<h4>设置上边框属性</h4>

<p class="none">No top border</p>
<p class="dotted">A dotted top border</p>
<p class="dashed">A dashed top border</p>
<p class="solid">A solid top border</p>
<p class="double">A double top border</p>
<p class="groove">A groove top border</p>
<p class="ridge">A ridge top border</p>
<p class="inset">An inset top border</p>
<p class="outset">An outset top border</p>

</body>
</html>